Windows 8 and Windows RT include a built-in email app named Mail (also referred to as Windows 8 Mail or the Windows 8 Mail app). The Windows 8 Mail app includes support for IMAP and Exchange A...
Updated Jul 01, 2019
Version 2.0
Blog Post
@AM: Most organizations don't allow unmanaged devices (devices with no policies). Exchange ActiveSync policies are applied to mailbox users and thus applicable to all
EAS devices your users use. You can't exempt a specific device from EAS policies. You can use device access rules to allow, block or quarantine devices. See
http://blogs.technet.com/b/exchange/archive/2010/11/15/3411539.aspx
Controlling Exchange ActiveSync device access using the Allow/Block/Quarantine list for details.
If you want to allow devices to connect without restrictions, you can modify the EAS policy (applicable to users - the default EAS policy if you haven't created any custom policies) to disable most settings. See
http://technet.microsoft.com/en-us/library/bb123484.aspx
Understanding Exchange ActiveSync Mailbox Policies in Exchange 2010 documentation for details.